Provides a single block from the administration menu as a page.
public function translatorAdminMenuBlockPage() {
$contents = $this->systemManager
->getBlockContents();
if (count($contents['#content']) === 1) {
/** @var \Drupal\Core\Url $url */
$url = reset($contents['#content'])['url'];
return $this
->redirect($url
->getRouteName(), $url
->getRouteParameters(), $url
->getOptions());
}
return $contents;
}